scholarly journals Calculation of the Modulus of Elasticity with Using Natural Frequency Formula and Updated Finite Element Analysis Of Automotive Rear Lamp Lens

2019 ◽  
pp. 27-31 ◽  
Author(s):  
ERHAN AY ◽  
BARIŞ EDİZ ◽  
TANER ÇAL ◽  
SEVDA TELLİ ÇETİN
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Natural Frequency ◽  
Modulus Of Elasticity ◽  
Element Analysis ◽  
Rear Lamp

scholarly journals Simulasi Pembebanan Komponen Bender pada Desain Mesin Begel Fabricator Menggunakan Software Autodesk Inventor 2020

2021 ◽  
Vol 2 (2) ◽  
pp. 93-97
Author(s):  
Satriawan Dini Hariyanto ◽  
Wikan Kurniawan
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Cast Iron ◽  
Mild Steel ◽  
Modulus Of Elasticity ◽  
Material Parameter ◽  
Element Analysis ◽  
Material Parameters ◽  
Constituent Material ◽  
Loading Parameter

Stress analysis of the bender components in the design of the begel fabricator machine was carried out using FEA (Finite Element Analysis) with three variations of the constituent material parameters, namely 6061 aluminum, mild steel, and cast iron with a modulus of elasticity of 68.9 GPa, 220 GPa, 120.5 GPa, respectively. The test is carried out by a loading parameter 2520 MPa and fixed constraint. The maximum von misses stress and displacement obtained for each material parameter components using aluminum, mild steel, and cast iron are 17.78 MPa; 0.00765, 17.49 MPa; 0.00229, 17.62 MPa; 0.00427 respectively.

Investigation of stiffness of small wind turbine blade based on vibration analysis technique

2019 ◽  
Vol 44 (1) ◽  
pp. 49-59
Author(s):  
Nilesh Chandgude ◽  
Nitin Gadhave ◽  
Ganesh Taware ◽  
Nitin Patil
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Wind Turbine ◽  
Natural Frequency ◽  
Vibration Analysis ◽  
Natural Frequencies ◽  
Mode Shapes ◽  
Element Analysis ◽  
Finite Element Software ◽  
Small Wind Turbine

In this article, three small wind turbine blades of different materials were manufactured. Finite element analysis was carried out using finite element software ANSYS 14.5 on modeled blades of National Advisory Committee for Aeronautics 4412 airfoil profile. From finite element analysis, first, two flap-wise natural frequencies and mode shapes of three different blades are obtained. Experimental vibration analysis of manufactured blades was carried out using fast Fourier transform analyzer to find the first two flap-wise natural frequencies. Finally, the results obtained from the finite element analysis and experimental test of three blades are compared. Based on vibration analysis, we found that the natural frequency of glass fiber reinforced plastic blade reinforced with aluminum sheet metal (small) strips increases compared with the remaining blades. An increase in the natural frequency indicates an increase in the stiffness of blade.

scholarly journals Analisis Natural Frequency Poros Boiler Feed Pump Turbine dengan Finite Element Analysis

2020 ◽  
Vol 1 (1) ◽  
pp. 27-34
Author(s):  
Disma Nidya Ghaisani ◽  
Andi Ulfiana ◽  
Cecep Slamet Abadi
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Natural Frequency ◽  
Condition Based Maintenance ◽  
Feed Pump ◽  
Element Analysis ◽  
Pump Turbine ◽  
Ansys Workbench

Boiler Feed Pump Turbine (BFPT) merupakan salah satu pompa jenis sentrifugal dengan tipe multistage yang digerakkan oleh turbin kecil. Pompa ini digunakan untuk mensirkulasikan air demineralisasi dari deaerator menuju boiler. Berdasarkan pengecekan vibrasi yang dilakukan oleh bagian Condition Based Maintenance (CBM), telah ditemukan bahwa terjadi over vibrasi pada BFPT dikarenakan adanya indikasi perubahan natural frequency mendekati putaran operasi. Pada penelitian ini dilakukan simulasi Finite Element Analysis dengan software ANSYS Workbench untuk mendapatkan nilai natural frequency pada poros BFPT serta membahas mengenai kemungkinan penyebab terjadinya perubahan natural frequency. Berdasarkan simulasi ANSYS  yang telah dilakukan, didapatkan bahwa nilai dari natural frequency dapat berubah karena adanya perubahan defleksi dan menampilkan bahwa setiap modus getar menghasilkan nilai natural frequency yang berbeda juga. Pada simulasi ini didapatkan 6 nilai natural frequency pada poros BFPT yaitu 166,84 Hz, 166,99 Hz, 295,71 Hz, 465,83 Hz, 466,23 Hz, 503,46 Hz. Serta pada penelitian ini didapatkan juga bahwa vibrasi yang terjadi pada BFPT bukan akibat dari perubahan natural frequency, tetapi akibat adanya losseness pada housing bearing pompa. 

scholarly journals Design and Experimental Investigation of Composite Automotive Drive Shaft

2021 ◽  
Vol 9 (10) ◽  
pp. 1088-1094
Author(s):  
Akshay Dudam
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Composite Materials ◽  
Natural Frequency ◽  
Power Transmission ◽  
Drive Shaft ◽  
Torsional Buckling ◽  
Element Analysis ◽  
High Rotational Speed ◽  
Specific Strength

Abstract: Replacing composite bodies by the conventional metallic bodies have many advantages because of high specific strength and high specific stiffness of the composite materials. As compared to the conventional drive shafts, Composite drive shafts have the potential of lighter and longer life with high rotational speed. Nowadays drive shafts are used in two pieces. However, the main advantage of the current design is that only one piece of composite drive shaft is possible that fulfils all the drive shaft requirements. The torsional strength, torsional buckling and bending natural frequency are the main basic requirements considered here. This work is all about the replacing the conventional two-piece steel drive shaft with a one-piece carbon/epoxy. Design of composite drive shaft Classical Lamination Theory is used for the design of composite drive shaft. Finite element analysis (FEA) was used to design composite drive shafts incorporating carbon within an epoxy matrix. From experimental results, it was found that the developed one-piece automotive composite drive shaft had 64% mass reduction, 74% increase in torque capability compared with a conventional two-piece steel drive shaft. It also had 6380 rpm of natural frequency which was higher than the design specification of 3050 rpm. Index Terms: Bending frequency, Composite Materials, Drive shaft, Finite Element Analysis (FEA), Power transmission, Torsion, Torsional buckling.

Finite Element Analysis and Structural Parameters Optimization of Piezoelectric Vibration Energy Harvester

2010 ◽  
Vol 44-47 ◽  
pp. 1465-1469
Author(s):  
Ai Min Hu ◽  
Ming Long
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Natural Frequency ◽  
Energy Harvester ◽  
Structural Parameters ◽  
Vibration Energy ◽  
Element Analysis ◽  
Vibration Energy Harvester ◽  
Piezoelectric Vibration Energy Harvester ◽  
Piezoelectric Vibration

The working principle of piezoelectric vibration energy harvester is described. A piezoelectric cantilever and mass composite structure is proposed to harvest vibration energy in resonance mode, and the mass is added on the edge of the cantilever to decrease the natural frequency of the whole structure. The finite element analysis was carried out on the composite structure using the ANSYS software. The displacement results were obtained by structural analysis, and the first order natural frequency was also obtained by modal analysis. Finally, the influence rules among the structural parameters, such as length and width of the cantilever, length and thickness of the mass and width of the PZT, and the natural frequency, piezoelectric output voltage are discussed in detail. Finally, the optimal structure of the harvester is obtained.

Strength Design for Star Sprocket Based on ANSYS

2014 ◽  
Vol 635-637 ◽  
pp. 312-315
Author(s):  
Lin Hong ◽  
Ying Jie Li
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Modal Analysis ◽  
Natural Frequency ◽  
Dynamic Optimization ◽  
Natural Frequencies ◽  
Analysis Software ◽  
Optimization Analysis ◽  
Element Analysis ◽  
Chain Conveyor

A star sprocket is an important component of U-shaped slide chain conveyor, so it is particularly important to be analyzed. It conducts modal analysis of star sprocket by using large finite element analysis software, ANSYS, calculates natural frequencies of the first five and the corresponding modes and analyzes natural frequency affected by sprocket tooth thickness. The result provides basic theory for dynamic optimization analysis of U-shaped slide chain conveyor.

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